TERRA DC WALLBOX UL
2020-10-05
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5.4.2
Install cable gland(s) or connect conduit to the unit.
The maximum diameter of the grid cable is 32 mm. The opening is pre-punched for a 1.25” trade size
conduit. The minimum diameter of the grid cable is 22 mm with the standard fitted cable gland insert.
1. Slide the cable inside the grommets, ensure at least 10mm of cable external jacket inside the box (see
notes at the end of this section, before sliding the cable inside the grommet. Allow at least 24 inches of
wire from the conduit entry point to allow enough wire to route thru the internal grommet/cable glands
and wrap around to the terminal blocks. (For the 3-phase version, remember to route the wires thru the
ferrite)
Conduit Install shown as a comparison
NOTE 1: For 3-phase versions a ferrite core is provided with the Terra DC Wallbox (plastic bag within the package
or strapped to the CCS-1 cable) and needs to be installed in commissioning phase. The Ferrite needs to be in-
serted in the AC in cable and located in the screw cable cover (see picture above, left).
THE FERRITE IS REQUIRED
TO MAINTAIN THE WARRANTY.
NOTE 2: Two floating grounding cables are provided that are connected to the ground node. One cable must be
connected between the to the wall frame PEM the other to the front lower cover in order to guarantee equal
ground potential (see picture above, right).
480V 3-phase version
Ferrite Location
3-phase version
Wire pass thru
location